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You are here: Home / News / Aplikasi Office 365 yang Berbahaya Adalah Orang Dalam Terbaik

Aplikasi Office 365 yang Berbahaya Adalah Orang Dalam Terbaik

May 6, 2021 by Winnie the Pooh

Penipu yang menargetkan pengguna Microsoft Office 365 semakin beralih ke tautan khusus yang mengarahkan pengguna ke halaman masuk email organisasi mereka sendiri. Setelah pengguna masuk, tautan tersebut meminta mereka untuk memasang aplikasi berbahaya yang memberi penyerang akses yang terus-menerus dan bebas kata sandi ke email dan file pengguna mana pun, yang keduanya kemudian dijarah untuk meluncurkan malware dan penipuan phishing melawan orang lain.

Serangan ini dimulai dengan tautan email yang ketika diklik memuat bukan situs phishing tetapi halaman masuk Office 365 pengguna yang sebenarnya – baik itu di microsoft.com atau domain perusahaan mereka. Setelah masuk, pengguna mungkin melihat prompt yang terlihat seperti ini:

Sumber: Krebsonsecurity

Aplikasi berbahaya ini memungkinkan penyerang untuk melewati otentikasi multi-faktor, karena mereka disetujui oleh pengguna setelah pengguna tersebut telah masuk. Selain itu, aplikasi akan tetap ada di akun Office 365 pengguna tanpa batas waktu hingga dihapus, dan akan bertahan bahkan setelah akun melakukan reset kata sandi.

Minggu ini, vendor keamanan pesan Proofpoint menerbitkan beberapa data baru saat muncul aplikasi Office 365 yang berbahaya ini, mencatat bahwa persentase tinggi pengguna Office akan jatuh ke skema ini.

Ryan Kalember, wakil presiden eksekutif strategi keamanan siber Proofpoint, mengatakan 55 persen pelanggan perusahaan telah menghadapi serangan aplikasi berbahaya ini pada satu titik atau lainnya.

Selengkapnya: Krebs On Security

Tagged With: Cybersecurity, Insider Threat, Malicious Apps, Microsoft, Office 365

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